Cushion-hub.



PATENTED APR. 9, 1907.

'.'oetll whomit may concern: l

...JOHN A. MGMANUS, or rn-imbailrhm, PENNSYLVANIA.

` CUSHION-llana! rio. 850,040.

Specification of IiettersrPatent."

Patented april 9, i907.

` Appelation im october so,1so5. aan No. 284,954.

Be itknown that I, JOHN A. McManus, a citizen of the United States, residngat Phil#v 'adeiphia county of Philadelphia, and State of ennsylvania, have invented a certain 4new and' useful Improvement in Cushion- 4 Hubs,

of which the followingis a 'specifica-l tion.'`

invention', relates to a new'and useful improvement in cushion-hubs for`IA vehicles, adhas for its object to rovide a simple and `effective device' of this escriptio'n which in practice will absorb the' shock attendant upon the travel of the Wheel overa road-bed,

Athereby obviating the necessity of using an ordinary pneumatictire, while 'at the sametime relieving the body of the vehicle 'and its occupants ofthe vibration and jaras' effectively as though a pneumatic tire were used.

With these endsan view this invention consists in the details of construction and combination of elemen s hereinafter set forth and then specifically esignated b theclairns.

In order 'that those skille' in the art to which this invention appertains `may understand how to make and use the same, the construction andfoperation Will now b e :described in detail, referring to the accompanying drawings, forminga part of this specifi- '5 cation, in 'Which- 'Figure 1 is a vertical section of the hub and Vbox made in accordance with my improvementa-showing the axlewithin the said box; Fie. 2, a section at ri htangles to Fig. 1.

teferrin to the rawings, A represents the hub, W ich .may be of any suitable construction, said hub being rovided -with grooves around its ends for t e -travel ofthe balls B, and these balls are fhoused by the caps Cythe latter also having grooves therein for tl'e travel of said balls.

D represents the box of cylindrical form. havinlg a slot therein for the reception of the axle said axle being fitted in -said slot so as to have a vertical-sliding movement andv resting uponthe springs F, also located Within the slotformed 1n the box, and in" order that said springs may be held in alinement and the axleffurther lguided. the boltrodsG are run throu h-the slotin the box and also other suitab e holes formed in the' axle, as clearl shown inlthekdrawinvs.-

A sleeve bolt-rods G passing through-said sleeve, so as' tohold it in place, and this sleeve serves to limit the upward movement ofthe axle, and

in order to prevent undue hammering upon f the sleeve by the axle a rubber oushio inter osed between theseeve.

The end caps C are 'secured to the box by 'means of the screws J, so as to remain stationary with said box and the axle, While the hub A travels around the same upon the balls,'which travel inthe. grooves'formed in the axle and the top of said caps, as before stated. The caps-.C also serve to take up the end thrust of the axle, the latter being provided with the depending brackets K, each of which has a series of balls 'L'set therein lso as to ride upon the inner surface of the cafis, as will be readil understood. Of course d0 not Wish to be imited to the exact fprm of springs here shown, as elli tical' 'or Senn-elliptical springs might be use With equal eiiciency, 01" a pneumatic bagmight be .placed within the slot formed in the box and inflated, so as to support the axle.

that the pneumatic tire is supposed to acconiplish 1n the way of relieving-the shock inci ent to`travelin over a roa ates the serious di culty heretofore experienced in the use of the neumatic tire from -puncture or deiation an has-the advantage that should the springs become broken the My improvement, while accomplishing all i vehicle can stillcontinue on its course, which will not be the case Where a 4pneumatictire becomes injured. 2 .Y

Having thus fully described my invention, what I claim as new and useful is 1. In combinationwith the axle of the ve hicle, a box havin a slot therein for the vreception of said a e, springs located Within the box for sup orting the axle, a sleeve 'secured around t e box, tvvoicaps secured to the ends of the boxfsaid caps having grooves therein, a hub havin grooves in the ends thereof, and two sets o balls, one set adapted to run in each of the grooves formed in the caps and the hub; as specified.

2.The herein-described combination .of

the axle, a box having a slot-therein for the rece tion of said' axle, .s rings located within the ox for su porting t e axle, a sleeve sur- `'rounding the ox, bolt-rods passing through i the box'and axle ysecuring the sleeve in place, "is' tted aroi'mdv thelbox, vthe a cap secured to each end of the box, said caps havingr nannular grooves formed therein,

req

.il I l 850,040

series-of balls -adaptedto travel in each of fixed niy signature in the presence of two 'leerd grooves, a hub fitted around said sleeve subscribingy Witnesses.

and adapted to travel upon said balls, and JOHN IA. MCM ANUS1 dependin brackets formed with the axle and 5 "having ba 1s therein for riding upon the inner W tnesses:

surface of the caps as specified. MARY E. HAMER,

In testimony whereof I have hereunto af- S. S. WILLIAMSON. 

